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Full text of "The manufacture and properties of iron and steel"

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THE UNITED STATES.                                     £89
mer blowing engine near the blast-furnace boilers to use the excess power developed at the smelting plant.
During the last few years the Maryland Steel Company, or, as it is often known from its location, "Sparrow's Point/' has furnished a great proportion of the rails exported from America. This is a natural result of its situation, and of the fact that there is no duty on the iron ore which goes into articles of export. Following is a statement showing the steel rolled from 1898 to 1901, with the amount exported. Fig. XXII-M is a plan of the rolling mill at Sparrow's Point, while Fig. XXII-K gives a cross-section of the Bessemer plant at Steelton, Pa., showing the method of casting on trucks:
1898               1899                1900                 1901
Production...........    130,804           225,645           225,618           277,853
Exported.............      63,972             85,976           102,254             83,673
Per cent, export........          48.9                 38.1                  45.3                 30.1
SEO. XXIIj.óLak-e Erie:
The ore for the furnaces of Pennsylvania comes down the Great Lakes and is unloaded on the shore of Lake Brie. A furnace at the port of entry will have no land freight to pay on the ore, and will haul less than one ton of coke, while the furnaces near the fuel must haul 12/S tons of ore. The proposition is simple from a mathematical standpoint, but there are circumstances which disturb the calculations, for a position on the shores of Lake Brie does not increase the sphere of commercial influence as much as might be expected. On the north the tariff of Canada bars the way, while on the west is the competition of Chicago. There is no reliable communication eastward; the falls at Niagara have given rise to two canals, one on American territory to ISTew York by way of the Hudson Eiver, and one in Canada, the Welland Canal, connecting with the St. Lawrence. Great sums have been.spent by Canada to create an economical way of shipping by water from her western provinces to the ocean, but she is struggling not only with a commercial but a political complication. The navigation of the St. Lawrence from Quebec to Montreal is not satisfactory, but the latter place will not allow Quebec to get all the trade. Consequently much money is spent to improve the river channel, which can be used only a part of the year, when "there already exists a subsidized government railway which ban carry the freight to Que-